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Dierama argyreum L.Bolus

Species

Angiosperms > Asparagales > Iridaceae > Dierama

Characteristics

Plants (0.40-)0.65-1.35 m high, solitary or up to ± 5 in small tufts. Corm 25-30 mm diam. Stem with lowermost peduncle 45-110(-135) mm long. Foliage leaves few, (300-)500-750(-1000) x (2.5-)3.5-6.5 mm; reduced sheathing leaves mostly 4 or 5. Spikes pendulous, terminal (4)6-to 11-flowered, laterals (2)3 to 7, each (3)4-to 9-flowered; bracts elliptic to oblong, acute to obtuse, 14-24 x 7-10 mm, < or up to 2 internodes long, membranous, pure white or rarely with a few flecks, lateral veins usually 6 or 7 each side of main vein. Flowers funnel-or bell-shaped, white or ivory-coloured, sometimes tinged pink at base or rarely wholly mauve-pink; perianth tube (4-)6-12 mm long; tepals (14-)16-20(-25) x (5.0-)6.5-10.0(-14.0) mm. Anthers 6-10 mm long. Stigmas held level with top of perianth or up to 10 mm below top of perianth.
More
Perennial herb, geophyte, 0.65-1.35 m high; stem solitary or up to 5 tufted together; corm 25-30 mm in diam. Leaves linear, acuminate; venation pronounced; radical leaves 300-1000 x 2.5-6.5 mm; reduced sheathing leaves 4 or 5. Flowering stem 0.40-1.35 m high. Bract white, rarely with few spots, 14-24 x 7-10 mm, elliptic to oblong, acute. Inflorescence a raceme of spikes, pendulous, with 2-7 branches. Perianth pure white or ivory-white, sometimes tinged mauve-pink at base, 18-35 mm long; tube 4-12 mm long; tepals 14-25 x 5-14 mm. Anthers 6-10 mm long. Flowering time Oct.-Dec.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.1 - 0.5
Mature height (meter) 0.65 - 1.35
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity -
Soil texture -
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 10-10

Usage

Uses medicinal
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions or seedlings.
Mode divisions seedlings
Germination duration (days) 30 - 180
Germination temperacture (C°) 15 - 18
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Dierama argyreum unspecified picture

Distribution

Dierama argyreum world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:436831-1
WFO ID wfo-0000789287
COL ID 3626X
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dierama argyreum Dierama argyreum var. majus
WorldFloraDB 2024